Socket for vacuum tubes



W. K. HENNING SOCKET FOR VACUUM TUBES May 14, 1940.

Filed July 23, 193'] {Iii Patented May 14, 1940 SOCKET Foa VACUUM TUBES Warren K. Kenning, Plano, Il l., assignor to Hugh H. Eby Inc., Philadelphia, Pa.

Application July 23. .1937, Serial No. 155,214

tion will be apparent .from the description and claims.

In the drawing in which an embodiment-of my w invention is shown- I Figure 1 is a side elevational view of the socket and securing cup;

Fig. 2 is a bottom view of the construction of Fig. 1;

Fig. 3 is a fragmentary sectional view showing a contact and wiring terminal member in position in the b Fig. 4 is a sectional view on the line t-J of Fig. 3: 1

Fig. 5 is an elevational view of the contact and wiring terminal member;

Fig. 6 is a fragmentary view showing the ground connection between the wiring terminal and saddle. Fig. '7 is a perspective view showing the saddle and ground connection.

Fig. 8 is a sectional view on the line H of Fig. 9: and

Fig. 9 is a sectional view, on the line 9-9 of 85 Fig. 8. 4

Referring to the drawing in detail, the construction shown comprises an insulating base I, a plurality of wiring terminal contact members 2 mounted on the base, and an annular seat or saddle member 3 in which the insulating base I is mounted for securing the base in position on .the panel 4. The securing saddleis provided with an integraltongue. 5 which may extend downwardly and be electflcally'connected with one or more of the wiring terminal tongues 15 as shown in Figs. 1, 2, and 6.

The contact and wiring terminal member 2 may be of sheet metal shaped to provide a contact sleeve 1 split along one side only at ai'or engaging the tube prong and wiring terminal tongue portion 8 extending downwardly through a slot 0 at the bottom of the contact-receiving recess III. In order to hold the contact and wiring terminal member 2 in position securely and u definitely, I provide a notch n (Fig. 5) in one edge of the tongue whereby a wing portion I2 is formed having a cut edge shoulder portion which can be bent out so as to lie underneath the insulating base, as shown in Figs. 1, 3 and 4. The wiring terminal tongues 6, after being twisted to 5 the desired position, may be bent outwardly slightly for convenience in wiring and to bring them into position so as to be engageable by the ground. connection, if desired, as shown in Figs. 1, 2, and 6. 30

In making the wiring connection with the wiring terminal which it is desired to ground, the bared end of the wire l3 may be inserted through registering openings in the ground connection 5 and wiring terminal tongue 6 and secured in 35 position by soldering, as shown in Fig. 6.

The insulating base l may be secured in the seat or saddle 3 by means of a cupped flange portion M underlying a flange I5 on the insulating base i and by means of tongues is struck inwardly from the seat member 3 and engaging in notches in the insulating base I, thus definitely positioning thesaddle 3 with respect to the insulating base i and'holding the base firmly in the saddle.

-In order to enable the contact and wiring terminal members 2 to be inserted into the recesses -in the insulating base, the contact-receiving. Dortion of the recess is provided with a pair of longitudinally-extending grooves ll leading to the $0 ends of the slot 9 so that in assembly the edges of the tongue 8 can engage these grooves as the contact is being slipped into position. The ground connection 5 may, if desired, be shaped toengage more than one of the wiring terminal tongues 6 as shown in Fig. 2. Also, if desired, more than one ground connection may be provided.

As shown in Figs. 8 and 9, the sleeve portion 1! may be substantially circular in cross section so as properly to engage the cylindrical tube prong and may have tongue portions 18 struck inwardly therefrom having cut edge portions l9 extending transversely of the sleeve portion I for scraping engagement with the tube coilitact. 7

It will be seen that theconsti'uction shown provides a simple ground connection and that the contact and wiring terminal members are held in position firmly and definitely by means of the cut'edge shoulder on the wing portion H of the 60 wiring terminal'tongue 6.

Furthermodiflcations will be apparent to those skilled in the art and it is desired, therefore, that the invention be limited only by the prior art an the scope of the appended claims. ll

said slot, said tongue having its edge notched to provide a cut edge shoulder portion on a wing bent on an axis substantially parallel to the slot to cause said out edge shoulder portion to move out of slot alignment to underlie the base to hold the contact and wiring terminal member in posi- 2. A tube socket comprising an insulating base having an opening therethrough and an integral sheet metal contact and wiring terminal member, said opening comprising a contact-receiving portion and a slot leading from the contact-receiving portion to the under side of the base, said contactv and wiring terminal member being insertable into said opening from the upper side of the base, said sheet metal member comprising a tongue extending from said contact through said slot, said tongue having its edge notched to provide a cut edge shoulder portion on a wing bent on an axis substantially parallel to the slot to cause said out edge shoulder portion to move out of slot alignment to underlie the base to hold the contact and wiring terminal member in position, the contact-receiving portion of said opening being substantially cylindrical and having a groove in one side leading to an end 0! said slot. said contact portion comprising a sleeve open longitudinally on one side only, said tongue having its notched edge slidable in said slot in assembly.

WARREN K. HENNING. 

